package com.woniuxy.exception;

import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authz.UnauthorizedException;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import com.alibaba.fastjson.support.spring.FastJsonJsonView;

//全局异常处理器  用于捕获所有控制层的异常
@Component
public class GolbalExceptionResolver implements HandlerExceptionResolver {

	public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
			Exception ex) {
		ex.printStackTrace();
		FastJsonJsonView view = new FastJsonJsonView();
		response.setStatus(500);
		HashMap<String, Object> map = new HashMap<String, Object>();
		map.put("code", 500);
		// 判断异常类型
		if (ex instanceof UnknownAccountException) {
			map.put("message", "用户名不存在");
		} else if (ex instanceof IncorrectCredentialsException) {
			map.put("message", "密码错误");
		} else if (ex instanceof UnauthorizedException) {
			map.put("message", "非法访问");
		} else {
			map.put("message", "服务器内部异常");
		}
		view.setAttributesMap(map);
		return new ModelAndView(view);
	}

}
